Antenna



FIG. 1 is a front elevation view of an antenna, showing our new design;

FIG. 2 is a side plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top perspective view thereof;

FIG. 6 is a front elevation view thereof, with unclaimed environment notshown;

FIG. 7 is a side elevation view thereof, with unclaimed environment notshown; and,

FIG. 8 is a bottom plan view thereof, with unclaimed environment notshown.

The broken line in the figure drawings represents unclaimed environmentonly and forms no part of the claimed design.

CLAIM The ornamental design for an antenna, as shown and described.